Question

@inherits umbraco.MacroEngines.DynamicNodeContext
@using System.Collections;

@{ List<string> qa = new List<string>(); } //this is not defined in the recursive helper below

@helper traverseFirst(dynamic node){
   var items = node.Children.Where("umbracoNaviHide != true");
   foreach (var item in items) {
     foreach(var subItem in item.Descendants()) {
        if(subItem.Id == Model.Id)
        {
           qa.Add();
           break;
        }
     }
     @traverseFirst(item)
   }
}

@traverseFirst(@Model.AncestorOrSelf("Book"))

The variable qa canot be accessed in the recursive helper. Is there a way around this?

Answer 1

Define the variable in a @functions section.

The normal @{ places your code in some method body. Use @functions to define class members.

@functions{ List<string> qa = new List<string>(); } 

More reading on this matter: SLaks Dissecting razor series.